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[jdmhatchracer94]

Ok got bored one day and started porting my extra ls head figured i could pick up a lil flow by shaving the valve guides down anyone else do this? They came down pretty far in the port so i figured a little wouldnt hurt. Well then i wound up with this to much?


The guides are basicly flush with the head now dunno if i fucked if up or what but if i did oh well it's just a ls haven't touched the intake side yet.

p.s. the only reason i did this i has at delta a while back they did a b7 head for some guy and the guides where cut(Not this much) but thats what got me thinkin.

[bigdaddyvtec]

too much mang. wayyyy too much

[DasPoop]

fuck it its a honda head just put good valves in it and call it a day and hope it doesnt bend them. some people do this but i would say endyn tells it the best

http://www.theoldone.com/articles/d16a_head/

[jdmhatchracer94]

fuckit if I have to I will just replace guides or toss it $20 head not that big a deal

[DasPoop]

ship it to me!!!! i have wanted to massage a head with hardened guides and "special" valves to improve flow and lower egts

[runsfromdacops]

fuck that shit cut giudes are fine  all the big boy race heads i have seen have them cut down. my head is cut too. the giudes wont last 200k miles but its a race car so fuck it.

[DasPoop]

fuck that shit cut giudes are fine  all the big boy race heads i have seen have them cut down. my head is cut too. the giudes wont last 200k miles but its a race car so fuck it.

Go big or go home nigga

[jdmhatchracer94]

kinda how i looked at it i dont drive the thing but once a month or so

[bigdaddyvtec]

fuck that shit cut giudes are fine  all the big boy race heads i have seen have them cut down. my head is cut too. the giudes wont last 200k miles but its a race car so fuck it.

I havent seen your car run more than a week let a year anywys... SO ya, fuck it   

[d112crzy]

fuck that shit cut giudes are fine  all the big boy race heads i have seen have them cut down. my head is cut too. the giudes wont last 200k miles but its a race car so fuck it.

I havent seen your car run more than a week let a year anywys... SO ya, fuck it   

LOL.

The small cfm gained from cutting guides is not worth the decrease in longevity. A good valve job will have more cfm improvements than guide cutting.

[jdmhatchracer94]

my plan way to have the valve job done the flow tested at a local shop guess i need new guides we will see what happens

[chris]

I cut the guides flush

[jdmhatchracer94]

thats what i did at first then I ground them as I ground the ports apparentley bad idea

[runsfromdacops]

fuck that shit cut giudes are fine  all the big boy race heads i have seen have them cut down. my head is cut too. the giudes wont last 200k miles but its a race car so fuck it.

I havent seen your car run more than a week let a year anywys... SO ya, fuck it   

yep and it has always been probloms with the bottem end and the clutch not the head.

[bigdaddyvtec]

It hasnt ran long enough...

[That Guy]

i was thinking of doing bigger valves in a d series head just as an experiment, like b series valves, especially on a vitara setup with lots of clearance, if i ever do, ill post pics

[Joseph Davis]

Cut guides, no problem.

Cut 150K mile guides, shit that's already worn out, problem.

Fit some goddamn B20A/B21A1 intake valves and seats in there, port the bowl to suit, and be goddamn done with it.

[That Guy]

As long as cutting the head to press in the new seat doesnt break through into water it would be fairly simple. measure new valve, use appropriate bronze reamer for proper valve stem clearance, install tooling for square cut for new seat, change tooling to 5 angle cutter, resurface.

[danz]

it wont be a problem.  shave the guides down.

i know on my D series head, the guides are flush.


if you can taper the guide before its pressed in that might be a good idea.  i think i remember reading about B's having shorter guides than D's and how its more of an issue to shave the guides on a B, but i dont think its going to be a problem.

chances are a piston will meet the head before the guides wear out enough to serious effect the valve seal.

[That Guy]

Anyone want to send me a D series head and some B valves? if someone is willing to pay the parts and shipping and can trust that ill send it back finished, ill spend some of my time doing this. or i guess if i come across a head for free locally ill do it and throw it up in the for sale section on the cheap, like, i just want to recover parts cost. parts being 8 new seat inserts and possibly guides all around.

If that didnt make sense, what i meant to say is... send me the shit to do it cause im a broke student and want to see it done, cause if it works good im gonna make myself one for my vitara motor(est completion 2034)

[Teg2boo]

I have 2 full sets of LS valves if you need some. I'll sell you a set for 10$+ shipping. I'm a broke student too and I need beer money so 

[That Guy]

  The mail today was good, a 151$ gst check, looks like all i need to do now is find a sohc head. D15B2 and 7 motors are the only fairly common, would anyone buy one of these above heads with the machine work done, or trade me some good shit for it/

Teg, do you got a mic and if so could i get some measurements of those stems. ill take a good set if you got one

[92CXyD]

The mail today was good, a 151$ gst check, looks like all i need to do now is find a sohc head. D15B2 and 7 motors are the only fairly common, would anyone buy one of these above heads with the machine work done, or trade me some good shit for it/

Teg, do you got a mic and if so could i get some measurements of those stems. ill take a good set if you got one

B20Z2/B18a/b valves
INTAKE               PV4583   1.22 X 6.6MM X 4.15 X 1G
EXHAUST   PV2547   1.10 X 6.6MM X 4.17 X 1G

These valves are a little short compared to

Stock D16/y8/z7 valve sizes         
INTAKE     PV4370   1.18 X 5.5MM X 4.66 X 1G    30mmX5.5mmX118.36mm
EXHAUST   PV4372   1.02 X 5.5MM X 4.56 X 1G    26mmX5.5mmX115.82mm

[Teg2boo]

The mail today was good, a 151$ gst check, looks like all i need to do now is find a sohc head. D15B2 and 7 motors are the only fairly common, would anyone buy one of these above heads with the machine work done, or trade me some good shit for it/

Teg, do you got a mic and if so could i get some measurements of those stems. ill take a good set if you got one

Damn, you guys in english world are rich, I only got 85$ 

I have access to a mic, but Russ told you what they are.

[92CXyD]

I posted in a thread somewhere in hybrid section about valve sizes.

[That Guy]

The mail today was good, a 151$ gst check, looks like all i need to do now is find a sohc head. D15B2 and 7 motors are the only fairly common, would anyone buy one of these above heads with the machine work done, or trade me some good shit for it/

Teg, do you got a mic and if so could i get some measurements of those stems. ill take a good set if you got one

Damn, you guys in english world are rich, I only got 85$ 

I have access to a mic, but Russ told you what they are.

Thanks for the specs 92.  i was more wondering the amount of wear on the valves you have teg, so i can order a reamer and have it show up when the valves do.

[Teg2boo]

Ok, the mic is at my parent's house so I'll bring it back tomorrow to measure them

[That Guy]

Ok, the mic is at my parent's house so I'll bring it back tomorrow to measure them

Thanks much

[Teg2boo]

Ok, the mic is at my parent's house so I'll bring it back tomorrow to measure them

Thanks much

I'll retry tomorrow, today I was to busy cooking a turkey. lol